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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 2    April 2001

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Production of high strength Al-Zn-Mg-Cu alloys
by spray forming process
WEI Qiang(韦 强), XIONG Bai-qing(熊柏青), ZHANG Yong-an(张永安),
ZHU Bao-hong(朱宝宏), SHI Li-Kai(石力开)

General Research Institute for Nonferrous Metals, Beijing 100088, P.R.China

Abstract:High strength Al-Zn-Mg-Cu alloys were produced by spray forming process, and compacted by hot extrusion. The results show that the as-deposited billets have fine-grained microstructure and low porosity. After heat treatment, mechanical properties increase greatly: tensile strength up to 754 MPa, yield strength up to 722 MPa, fracture elongation up to 8%, and elastic modulus up to 72 GPa, respectively.

 

Key words: spray forming; Al-Zn alloy; hot extrusion; mechanical properties

ISSN 1672-7029
CN 43-1423/U

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